However, since their purpose is to prepare children from different social and cultural backgrounds for regular school attendance, the classes have gradually appeared at ordinary primary schools and, to a lesser extent, at some kindergartens.
No obstante, como tenían el propósito de preparar a niños de distintos orígenes sociales y culturales para asistir a escuelas regulares, gradualmente se han ido introduciendo en escuelas primarias ordinarias y, en menor medida, en algunos jardines de la infancia.